Features:- Built-in GPS personal locator.- GSM / SMS communication or GPRS connection.- GPS and LBS accurate real-time location.- Support single location and continuous tracking.- Support location triggered by tracker.- Support location triggered by authorized cell phone.- Vibration alarm， your phone will receive SMS alarm， guarantee your car or motorcycle in safety.- Geo-fence protection， after setting the certain distance， once beyond the distance， your phone will receive alarm alert.- Over-speed alarm， once the speed is beyond the setting speed， it will alarm.- Movement alert， timely monitor your vehicle's status， anti-theft.- SOS button， help you get help in emergency circumstance.- Low battery alert， timely remind you of the low battery.- Support TF card.Parameters:- Band: 850 / 900 / 1800 / 1900MHz- GPRS: Class 12， TCP / IP - Working voltage: DC 9 – 58V- Standby current: About 0.2mA- GPS locating time: 45s ( cold start )， 35s ( warm start )， 1s ( hot start )- Car charger: 12 – 24V input， 5V output- Power adapter: 100 – 240V input， 5V output- Rechargeable battery: 3.7V 1000mAh li-ion battery- Standby time: 10 - 15 days- Operation time: 3 - 5 days- GPS precision: 30m ( 2D RM )- Working temperature: - 20 - 55 degrees- Working humidity: 5 - 95 percent RHType: Tracker GPS Bands : GSM 850/900/1800/1900MHz GPRS : TCP/IP Package weight: 0.099 kg Product size (L x W x H) : 6.5 x 4.5 x 1.7 cm / 2.55 x 1.77 x 0.67 inches Package size (L x W x H) : 23.5 x 16 x 2 cm / 9.24 x 6.29 x 0.79 inchesPackage Contents: 1 x TK102B Car GPS Tracker Anti-theft Vibration Over-speed Alarm， 1 x English User Manual， 1 x USB Cable， 1 x Rechargeable Battery